qrb5165-rb5: use new rootfs partition
qrb5165-rb5: use new rootfs partition

Latest RB5 bootloader package provides updated partition scheme. It
removes Android partitions and adds single rootfs partition at
/dev/sda1. Switch to new rootfs partition.

Signed-off-by: Dmitry Baryshkov <2dcd7ecf02101ef1dca344c0511f3ffb180907c2@linaro.org>

ndechesne/meta-qcom,ndechesne/meta-qcom,ndechesne/meta-qcom